import axios from 'axios'
import { ElNotification , ElMessageBox, ElMessage, ElLoading } from 'element-plus'
import store from '@/store'
import { getToken } from '@/utils/auth'
import errorCode from '@/utils/errorCode'
import { tansParams, blobValidate } from '@/utils/xquant'
import cache from '@/plugins/cache'
import { saveAs } from 'file-saver'
import {isVoid, isNotVoid} from "@/utils/util";
import lodash from 'lodash'
import * as ExcelJs from "exceljs";
let downloadLoadingInstance;
// 是否显示重新登录
let isReloginShow;

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'
// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: import.meta.env.VITE_APP_BASE_API,
  // 超时
  timeout: 180000
})

// request拦截器
service.interceptors.request.use(config => {
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false
  // 是否需要防止数据重复提交
  const isRepeatSubmit = (config.headers || {}).repeatSubmit === false
  if (getToken() && !isToken) {
    config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
  }
  // get请求映射params参数
  if (config.method === 'get' && config.params) {
    let url = config.url + '?' + tansParams(config.params);
    url = url.slice(0, -1);
    config.params = {};
    config.url = url;
  }
  if (!isRepeatSubmit && (config.method === 'post' || config.method === 'put')) {
    const requestObj = {
      url: config.url,
      data: typeof config.data === 'object' ? JSON.stringify(config.data) : config.data,
      time: new Date().getTime()
    }
    const sessionObj = cache.session.getJSON('sessionObj')
    if (sessionObj === undefined || sessionObj === null || sessionObj === '') {
      cache.session.setJSON('sessionObj', requestObj)
    } else {
      const s_url = sessionObj.url;                // 请求地址
      const s_data = sessionObj.data;              // 请求数据
      const s_time = sessionObj.time;              // 请求时间
      const interval = 1000;                       // 间隔时间(ms)，小于此时间视为重复提交
      const white = ["pricing"];
      if (s_data === requestObj.data && requestObj.time - s_time < interval && s_url === requestObj.url&&white.forEach((item)=>{
        return !(requestObj.url.includes(item));
      })) {
        const message = '数据正在处理，请勿重复提交';
        return Promise.reject(new Error(message))
      } else {
        cache.session.setJSON('sessionObj', requestObj)
      }
    }
  }
  return config
}, error => {
    Promise.reject(error)
})

// 响应拦截器
service.interceptors.response.use(res => {
    // 未设置状态码则默认成功状态
    const code = res.data.code || 200;
    // 获取错误信息
    const msg = errorCode[code] || res.data.msg || errorCode['default']
    // 二进制数据则直接返回
    if(res.request.responseType ===  'blob' || res.request.responseType ===  'arraybuffer'){
      return res.data
    }
    if (code === 401) {
      if (!isReloginShow) {
        isReloginShow = true;
        ElMessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
          confirmButtonText: '重新登录',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).then(() => {
        isReloginShow = false;
        store.dispatch('LogOut').then(() => {
          // 如果是登录页面不需要重新加载
          if (window.location.hash.indexOf("#/login") != 0) {
            location.href = '/index';
          }
        })
      }).catch(() => {
        isReloginShow = false;
      });
    }
      return Promise.reject('无效的会话，或者会话已过期，请重新登录。')
    } else if (code === 500) {
      ElMessage({
        message: msg,
        type: 'error'
      })
      return Promise.reject(new Error(msg))
    } else if (code !== 200) {
      ElNotification.error({
        title: msg
      })
      return Promise.reject('error')
    } else {
      return  Promise.resolve(res.data)
    }
  },
  error => {
    let { message } = error;
    if (message == "Network Error") {
      message = "后端接口连接异常";
    }
    else if (message.includes("timeout")) {
      message = "系统接口请求超时";
    }
    else if (message.includes("Request failed with status code")) {
      message = "系统接口" + message.substr(message.length - 3) + "异常";
    }
    ElMessage({
      message: message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

// 通用下载方法
export function download(url, params, filename) {
  downloadLoadingInstance = ElLoading.service({ text: "正在下载数据，请稍候", background: "rgba(0, 0, 0, 0.7)", })
  return service.post(url, params, {
    transformRequest: [(params) => { return tansParams(params) }],
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    responseType: 'blob'
  }).then(async (data) => {
    const isLogin = await blobValidate(data);
    if (isLogin) {
      const blob = new Blob([data])
      saveAs(blob, filename)
    } else {
      const resText = await data.text();
      const rspObj = JSON.parse(resText);
      const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode['default']
      ElMessage.error(errMsg);
    }
    downloadLoadingInstance.close();
  }).catch((r) => {
    ElMessage.error('下载文件出现错误，请联系管理员！')
    downloadLoadingInstance.close();
  })
}

/**
 * 通过前端导出Excel,数据条数指定 botao.yu
 * @param columnArray 列熟悉设置 例
 * { header: '已实现收益率(%)', key: 'realizedYield', width: 20 ,align:'right',fmtType:'percent'},
 * fmtType :money,percent,dict 其实为dict时要指定dictType
 * @param resultList 结果集
 * @param title 导出文件名
 */
export function exportExcelByWeb(columnArray,resultList,title) {
  const workbook = new ExcelJs.Workbook();
  const worksheet = workbook.addWorksheet(title);
  //设置列
  worksheet.columns =columnArray;
  //填充数据
  let expRows=lodash.cloneDeep(resultList);
  worksheet.addRows(expRows);
  //添加边框线
  for(let i=1;i<=expRows.length;i++) {
    for(let j=1;j<=columnArray.length;j++){
      worksheet.getRow(i).getCell(j).border = {
        top: {style: 'thin'},
        left: {style: 'thin'},
        bottom: {style: 'thin'},
        right: {style: 'thin'}
      };
      if(i==1){
        //列头背景色
        worksheet.getRow(i).getCell(j).fill = { type: 'pattern',pattern:'lightGrid', bgColor:{argb:'8e8a8a'}, fgColor:{argb:'8e8a8a'} };
        //列排列属性设置 只设置一次
        worksheet.getColumn(j).alignment={ vertical: 'middle', horizontal: columnArray[j-1].align };
        //列头居中
        worksheet.getRow(i).getCell(j).alignment = { vertical: 'middle', horizontal: 'center' };
        //数据格式化
        if(isNotVoid(columnArray[j-1].fmtType)&&columnArray[j-1].fmtType=='money'){
          //金额格式化
          worksheet.getColumn(columnArray[j-1].key).numFmt = '#,##0.00;\-#,##0.00';
        }else if(isNotVoid(columnArray[j-1].fmtType)&&columnArray[j-1].fmtType=='percent'){
          //百分比格式化
          worksheet.getColumn(columnArray[j-1].key).numFmt = '0.00%';
        }else if(isNotVoid(columnArray[j-1].fmtType)&&columnArray[j-1].fmtType=='dict'&&isNotVoid(columnArray[j-1].dictType)){
          //数据字典格式化
          let tmpDict=columnArray[j-1].dictType;
          let tmpDictObj={};
            if(isNotVoid(tmpDict)){
              lodash.forEach(expRows,obj=>{
                tmpDictObj=lodash.find(tmpDict,function(o){return o.value==''+obj[columnArray[j-1].key] });
                obj[columnArray[j-1].key] =(isNotVoid(tmpDictObj)&&isNotVoid(tmpDictObj.label))?tmpDictObj.label:"";
              })
            }
        }
      }
    }
    //行数据覆盖
    worksheet.getRow(i+1).values=expRows[i-1];
  }
  //最后一行数据加边框  数据渲染完后才能getRow,所以放在最后
  for(let j=1;j<=columnArray.length;j++) {
    worksheet.getRow(expRows.length + 1).getCell(j).border = {
      top: {style: 'thin'},
      left: {style: 'thin'},
      bottom: {style: 'thin'},
      right: {style: 'thin'}
    };
  }
  workbook.xlsx.writeBuffer()
      .then(buffer => saveAs(new Blob([buffer]), title+`${Date.now()}.xlsx`))
      .catch(err => console.log('导出Excel出错', err));
}

export default service
